Yarn dyeing apparatus



Nov. 17, 1970 yHARUMI HlGAsHlNo YARN DYEING APPARATUS 3 Sheets-Sheet l Filed Dec. 17, 1968 HARUMI HIGASHI No 1N VEN'I OR ATTORNEYS j NOV- 17, 1970 HARUMI HIGAsHlNo I 3,540,240

YARN DYEING APPARATUS Filed Dec. 17, 1968 3 Sheets-Sheet 5 Eigo 5 HARUMI HIGASHI No,

INVENTOR ATTORNEYS *United States Patent fi 3,540,240 YARN DYEING APPARATUS Harumi Higashino, 61-2, 3-chome, Komatsunakadori, Higashi Yodogawa-ku, Osaka-shi, Japan Filed Dec. 17, 1968, Ser. No. 784,364 Int. Cl. Bb 13/02 U.S. Cl. 68-5 1 Claim ABSTRACT 0F THE DISCLOSURE An apparatus for dyeing yarn with a plurality of dyes. A series of rotatable dye containers mounted one above the other on a driven shaft, and dye feed means are provided for feeding different colored dyes into the respective containers. Yarn feeding means are provided spaced around the periphery of the axis of the rotatable shaft, and yarns are fed along a series of paths around the periphery of the dye containers through chambers surrounding the dye containers. Rotation of the containers disperses the dye into the spaces therearound and the yarns passing therethrough are dyed with the respective colors.

This invention relates to an apparatus for dyeing yarn in which the untreated yarns used in textile goods are made to pass through a mist of atomized dye and pigment by centrifugal force. By varying the shade of color and grain size of dye and pigment used or by changing the speed for generating the centrifugal force, the dyeing effect can -be varied. During the dyeing, raw yarns are placed under uniform tension, thus making the length of each raw yarn uniform. According to this invention, each raw yarn is first dyed as desired in the arranged apparatus and then with these dyed yarns, woven cloth is produced in required pattern and colouring.

In this invention, the method of atomizing dye and pigment by means of centrifugal force, is differently achieved from conventional processes. Liquid containing dye and pigment is first introduced into a conical bowl container having a diameter gradually increasing upward towards upper circumference of the container. At iirst, the prepared liquid is led through pipe down to inside bottom of the container. Due to centrifugal force, the dye moves up the sides of the container, and as a result, the dye and pigment of the liquid are dispersed and atomized in the container. Next, the fully atomized dye and pigment rising to the upper opening circumference of container rush out into an outer vessel having an inverted conical shape. By passing the yarn upwardly through the Vessel, it is dyed in the mist of atomized dye as desired. The residual dye liquid falling down to the lower bottom of the vessel is recovered and used repeatedly.

According to this invention, the yarn after dyed is finished in uniform length, since if extended in different length due to different intensity of tension, and a textile is woven therefrom, the color pattern of the textile changes from one cloth to another. In order to prevent such irregularity, it is important that each yarn throughout dying process should be tensioned uniformly.

According to this invention, a bobbin of each yarn is mounted on the same periphery of a circle and tensioned towards the center of the circle so that yarn may be placed under uniform tension, and the yarn is then guided radially therefrom towards the center and put into the dying vessel. When the yarn bobbins placed in one straight line instead of circular arrangement, the distance between the hole entering into the dyeing container and the bobbin becomes varied so that the tension becomes different for different yarns and the length of the finished yarns becomes varied. The dyed yarn is introduced into yarn 3,540,240 Patented Nov. 17, 1970 winders arranged radially. The Winder is provided with an inclined groove deeply crosscut so that the dyed and dried yarns are wound thereon.

In the following description, reference is made to the accompanying drawings in which:

FIG. 1 is a front view of a first embodiment of the invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged sectional view of the essential parts of the first embodiment of this invention.

FIG. 4 is the front View partially in cross-section of the improved apparatus of this invention.

FIG. 5 is the plan view of the same FIG. 6 is the sectional view along the line A-A in FIG. 4.

FIG. 7 is the explanatory view of the essential parts thereof.

The construction of this invention is explained referring to the drawings. Horizontal plates 2, 3, 4 and 5 are disposed one upon the other between vertical frame plates 1. Bearing plates 6 are attached to the horizontal plates 2 and 3, opposing each other and have fitted thereon a power driven rotary vertical shaft 7 passing through the horizontal plate 4. Further, between the horizontal plates 3 and 4, the rotary shaft 7 is fitted with the desired number of conical movable dishes 8 in multistages having suitable distance therebetween and a series of stationary inverted cone shaped cases I9 surrounding dishes 8. In the upper and lower surfaces of cases 9 are provided a suitable number of holes 10 for passage of the yarn therethrough. The fluid pipes 11.penetrate the upper cover plates of the cases 9 and also are connected to pipes 14 by feeding pipes 15. The pipes 14 are connected to fluid reservoirs 13 containing the desired color dye etc., said reservoir lbeing disposed on a table 12 fixed to one side of the side frame 1. Further, on the lower cover plates of the cases 9 are disposed liquid discharge outlets 16 to which are attached circulating pipes 17 through pumps 18. The free ends of pipes 17 communicate with fluid reservoir tanks 13. Vertical supports 19 are arranged between the horizontal plates 3, 4, in such a way that the cases 9 may be fixed and riveted thereto at 20. Plates 22 having yarn holding pieces 21 are attached to the horizontal plates 3 and 4.

Next, shaped flanges 23 are fixed to the side frames 1 at their outer sides. To these flanges are mounted the bearings 24 having rotary rods 25 which are rotated by a suitable power source through the driving mechanism 7 and is fitted with yarn winders 27 having deeply cut cross grooves 26 therein. Further, in the drawing, 28 are the yarns to be dyed, 29 is the bar for suspending yarn, and 30 are yarn holding pieces attached to the horizontal plate 5.

This invention is constructed as described above, and while the rotary shaft is rotated at the required speed, the yarns to be dyed are drawn over the suspending rod 29 and through suspending pieces 21 associated with plate 4 upwards passing through the holes 10 installed in the cases 9 and wound in turn on the winders 27 through the holding pieces 21 associated with plate 3. When the yarns are drawn upwards, the various fluids containing varied dyes of desired colour are supplied through the supply pipes 15 and the pipes 14 of the fluid reservoir tanks 13 to the Ibottom of conical dishes 8. The liquids are atomized as the conical dishes are rotated and are caused to rise along the wall of the inner inclined surface of dishes 8, thereby resulting in increasing centrifugal forces on grains of dye. This causes a mist of small grains of dye flying in the dishes and finally escaping therefrom to fill the inverted conical cases 9. As the yarns are drawn upwards and contact this mist, small grains of dye are attached to the yarns which are dyed thereby as desired.

As the dishes 8 are formed in conical form, the suitable centrifugal force can be obtained. Further, as the peripheral Walls of the cases 9 are formed as inverted cones, very effective dispersion of the liquid can be obtained. The mist of grains of dye in cases 9 gradually drop down to the bottom plate and are discharged through outlets 16 through the circulating pipes 17 and sucked by the pump 18 and returned to liquid tank 13 for recovering of the liquid for further use. The cases 9 are spaced and xed in multistages so that the yarn dyed by a required colour in each case 9 is permeated, then exposed to the outer air, and again dyed in balanced wet state and transferred after being subjected to suitable drying effect and Wound on the cheese winders 27 with no application of tension.

Alternate right and left uniform Winding of the yarn on the winders can be obtained without applying forcibly right or left swing motion to the rod 25. The second embodiment which is improvement of the first will now be explained.

In the drawing, 41 is a cylindrical frame. Base plates 42 and 43 are mounted between the upper and lower positions of said frame 41, and these are formed integrally. The supporting column 44 is fixed vertically between said base plates 42 and 43. Necessary numbers (four in the example shown) of horizontal arm structures 45 are projected and attached in the transverse direction to the supporting column 44 with a suitable distance therebetween. The free end of each of these arm structures supports rotary shaft 46, to which are attached the follower pulleys 47. Main pulley 412 is attached to the shaft 411 connected to the shaft 49 otf the motor 48 through the transmission gear 410 (or change velocity clutch). Belt 413 is mounted on the main pulley 412 and said follower pulley 47, thereby each rotary shaft 46 is rotated at any speed individually. 414 is a inverted cone shape rotary dish firmly attached to the upper end of each rotary shaft 46. To the deepest central part of each rotary dish 414 is forcible, supplied dye liquid from supply pipe 417 with pump 418 interposed. Said supply pipe 417 is connected through outlet 416 to dye liquid container 415 which is attached to one side of the frame 14. Each dish is provided with an individual motor 48 and dye container 415.

Cover case 419 for enclosing each rotary dish 414 is xed by the supporting columns 420 provided between the base plates 42 and 43. Through liquid recovery outlet 421 at the bottom of cover case 419, liquid pipe 422 is connected to cover case 419. Centrifugal pump 423 is disposed in the midway of the liquid delivery pipe 422. The free end of the pipe 422 is connected to the dye liquid container 415 for recovering the dye liquid once used. Yarn guide hole 424 is drilled in the bottom of cover case 419. A number of driving drums 425 on its own horizontal unit shafts and provided with the yarn guide grooves 426 are connected in a ring by universal joints 428. This assemblage is supported on the upper part of the frame 41 with bearings 429 spaced equally therearound. The follower pulley 432 is axially fixed to any unit of the shaft 427 of the drum 425. Main pulley 432 is xed to the shaft 431 of motor 430 installed on the frame 41, and the driving belt 433 is mounted on said follower pulley 432 and main pulley 432 and drives the drum 425. Yarn winder drums 434 are disposed in such a Way that they rotate in contact with each drum 425 and are axially mounted on the individual shafts 435. Shafts 435 are mounted at equal distance on the bearing 429 and are freely detachable. The bobbin holders 437 of yarn Winder 436 are disposed annularly at the bottom part of the frame 41. The tension adjusting rod 438 is arranged peripherally above 'frame 41 and the yarn guides 439 are disposed annularly opposite to inlet holes of the lowest case cover 419 base and outlet holes of the highest case cover top plate. Further tension adjusting rod 440 is disposed annularly above drum 425. The yarn drawn out of the yarn bobbins 436 positioned at uniform distance from the center of the frame 41 and annularly by the bobbin holders 437 are collected radially in uniform condition and passed upwards through yarn guide holes 424 of each cover case 419 and passed through the tension regulating ring 440 and expanded outwards and guided to drum 425, which is rotated by the yarn cheese Winder 434 in contact therewith. A plurality of yarn windings t are each Wound under uniform tension and transferring speed.

As this invention is constructed as described above, when each motor 48 and motor 430 is driven and pumps 418 and 423 are rotated, yarn t wound onto a plurality of yarn bobbin 436 disposed annularly by the lbobbin holders 437 provided at the bottom part of the frame 41 advances to the lowest yarn guide hole 424 of the cover case 419 via the tension regulating ring 438 and the yarn guide 439, and is transferred upwards in turn through the yarn guide hole 424 of the upper cover case 419. The yarn t arriving to the upper most cover case 419 is guided again to the driving drum 425 provided on the upper part of the frame 41 via the yarn guide 439, and tension regulating ring 440, and passing the yarn guide groove 426, is wound by the yarn Winder 434 rotating in contact therewith.

A plurality of yarns t, when they are transferred upwards via the yarn guide holes 424 of each cover case 419, are passed and transferred along the side periphery and concentric therewith. In this case, the dye fluid in the dye fluid container 415 is dropped down into the central deepest part of the rotary dish 414 via the liquid feeding pipe 417 connected to outlet 416 and are dispersed to the whole periphery thereof uniformly, by the centrifugal force obtained by the rotation of the rotary dish 414, and stick uniformly to a plurality of yarns transferred along the side periphery of said rotary dish 414. Further, to the rotary dish 414 is supplied dye iluid of thick and thin colour even with different or same colour, and the yarn t to be passed and transferred along the side periphery of each rotary dish 414 is suitably dyed. The yarn t dyed by means of sticking of the dye fluid is wound by the yarn Winder 434. Further the dye fluid remaining in each cover case 415 without sticking to the yarn t, is recovered in each dye container 415 by the action of the centrifugal pump 423 interposed in the midway via the drain pipe 422 connected to the delivery mouth 421 of each cover 419.

Further, in yarn dying apparatus previously known, when the yarns transfer along the side periphery of the rotary dish 414, all yarns l surround the rotary dish 414 at a concentric circular position. But, in the lower and upper parts of the frame 41, this is divided linearly to the front and rear, and when the yarn t of the yarn Winder 436 is guided to the side periphery of the rotary dish 414, each yarn t is subjected to different tension due to this difference in distance. When the yarn t passes the side periphery of the rotary dish 414 and is dyed and in state of half dried, it is wound onto the yarn Winder 434 under different tension, so that the extension rate of the yarn t becomes different while drying at the same time. Thus, When the yarn is used for knitting or Weaving, there may be unanticipated shrinkage.

But, in this invention, in the lower part of the frame 41 are disposed annular members 437 in such a Way that the yarn winders 436 wound with yarn t may be arranged concentrically with the rotary dish 414. Driving drums 425 provided with yarn guide grooves 426 are arranged annularly on the upper part of the 'frame 41. The shafts 427 of the drums are connected by universal joints 428. The yarn winders 434 are rotatably in contact with each drum 425. All of the yarn t separating and translating from the yarn winders 436 are Wound onto the yarn Winder 434 under the same conditions, and each yarn t can obtain uniform tension and translating velocity, so

that it is subjected to uniformly distributed dye liquid from the rotary dish 414 and can be dyed in normalized pattern. Also, as irregular tension is not given to the yarn t, dyed yarn of the uniform quality can be obtained simultaneously.

I claim:

1. An apparatus for dyeing yarn comprising a frame, a pair of horizontal plates mounted therein, a rotary shaft horizontally positioned between said plates, a plurality of stationary cases mounted one above the other between said plates, a plurality of rotatable conical circular dishes mounted within said cases, a plurality of dye tanks mounted on said frame, feeding pipe means for supplying dye from said tanks to said dishes, drain means for recirculating dye from said cases to said tanks, a plurality of yarn winders mounted at the bottom of said frame, a plurality of driving drums mounted on shafts on the top of said frame, said shafts being connected by universal joints, a plurality of yarn winders mounted for contact and rotation with said drums, said drums being mounted concentrically with the axis of said dishes, and said cases have holes therethrough, whereby yarns are drawn from said yarn winders at said bottom of said frame through said holes and onto said yarn winders at said top of said frame, and whereby as said yarns are drawn through said cases, they are dyed by dye forced from said dishes by centrifugal force.

References Cited UNITED STATES PATENTS 2,987,419 6/1961 Stein 118-325 X WILLIAM I. PRICE, Primary Examiner U.S. C1. X.R. 68-200; 118-325 

